ClickHouse/cmake/find_simdjson.cmake

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CMake
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if (NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/simdjson/include/simdjson/jsonparser.h")
message (WARNING "submodule contrib/simdjson is missing. to fix try run: \n git submodule update --init --recursive")
return()
endif ()
if (NOT HAVE_SSE42)
message (WARNING "submodule contrib/simdjson requires support of SSE4.2 instructions")
return()
elseif (NOT HAVE_PCLMULQDQ)
message (WARNING "submodule contrib/simdjson requires support of PCLMULQDQ instructions")
return()
endif ()
option (USE_SIMDJSON "Use simdjson" ON)
set (SIMDJSON_LIBRARY "simdjson")
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message(STATUS "Using simdjson=${USE_SIMDJSON}: ${SIMDJSON_LIBRARY}")